root@VMAMDYFYRBO:~# curl https://io.bt.sb/install/update_7.x_en.sh | bash
curl: /usr/local/lib/libcurl.so.4: no version information available (required by curl)
curl: symbol lookup error: curl: undefined symbol: curl_easy_header, version CURL_OPENSSL_4
root@VMAMDYFYRBO:~#
这个怎么办